111 lines
3.2 KiB
Ruby
111 lines
3.2 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Gitlab::Kubernetes::Namespace do
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let(:name) { 'a_namespace' }
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let(:client) { double('kubernetes client') }
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let(:labels) { nil }
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subject { described_class.new(name, client, labels: labels) }
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it { expect(subject.name).to eq(name) }
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describe '#exists?' do
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context 'when namespace do not exits' do
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let(:exception) { ::Kubeclient::ResourceNotFoundError.new(404, "namespace #{name} not found", nil) }
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it 'returns false' do
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expect(client).to receive(:get_namespace).with(name).once.and_raise(exception)
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expect(subject.exists?).to be_falsey
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end
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end
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context 'when namespace exits' do
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let(:namespace) { ::Kubeclient::Resource.new(kind: 'Namespace', metadata: { name: name }) } # partial representation
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it 'returns true' do
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expect(client).to receive(:get_namespace).with(name).once.and_return(namespace)
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expect(subject.exists?).to be_truthy
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end
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end
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context 'when cluster cannot be reached' do
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let(:exception) { Errno::ECONNREFUSED.new }
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it 'raises exception' do
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expect(client).to receive(:get_namespace).with(name).once.and_raise(exception)
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expect { subject.exists? }.to raise_error(exception)
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end
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end
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end
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describe '#create!' do
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it 'creates a namespace' do
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matcher = have_attributes(metadata: have_attributes(name: name))
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expect(client).to receive(:create_namespace).with(matcher).once
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expect { subject.create! }.not_to raise_error
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end
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context 'with labels' do
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let(:labels) { { foo: :bar } }
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it 'creates a namespace with labels' do
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matcher = have_attributes(metadata: have_attributes(name: name, labels: have_attributes(foo: :bar)))
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expect(client).to receive(:create_namespace).with(matcher).once
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expect { subject.create! }.not_to raise_error
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end
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end
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end
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describe '#ensure_exists!' do
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it 'checks for existing namespace before creating' do
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expect(subject).to receive(:exists?).once.ordered.and_return(false)
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expect(subject).to receive(:create!).once.ordered
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subject.ensure_exists!
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end
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it 'do not re-create an existing namespace' do
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expect(subject).to receive(:exists?).once.and_return(true)
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expect(subject).not_to receive(:create!)
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subject.ensure_exists!
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end
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context 'when client errors' do
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let(:exception) { Kubeclient::HttpError.new(500, 'system failure', nil) }
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before do
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allow(client).to receive(:get_namespace).with(name).once.and_raise(exception)
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end
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it 'raises the exception' do
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expect { subject.ensure_exists! }.to raise_error(exception)
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end
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it 'logs the error' do
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expect(subject.send(:logger)).to receive(:error).with(
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hash_including(
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exception: {
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class: 'Kubeclient::HttpError',
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message: 'system failure'
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},
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status_code: 500,
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namespace: 'a_namespace',
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class_name: 'Gitlab::Kubernetes::Namespace',
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event: :failed_to_create_namespace
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)
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)
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expect { subject.ensure_exists! }.to raise_error(exception)
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end
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end
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end
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end
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